[GNUnet-SVN] [taler-docs] branch master updated: nfc clarification

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dold pushed a commit to branch master
in repository docs.

The following commit(s) were added to refs/heads/master by this push:
     new 26451fd  nfc clarification
26451fd is described below

commit 26451fd9848a667eae715890815dd083edf5e553
Author: Florian Dold <address@hidden>
AuthorDate: Fri Sep 13 01:22:53 2019 +0200

    nfc clarification
---
 taler-nfc-guide.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/taler-nfc-guide.rst b/taler-nfc-guide.rst
index e610b4c..374dc53 100644
--- a/taler-nfc-guide.rst
+++ b/taler-nfc-guide.rst
@@ -117,9 +117,9 @@ The GNU Taler wallet uses the AID (application identifier) 
``F00054414c4552``.
 The ``F`` prefix indicates the proprietary/unregistered namespace of AIDs, and
 the rest of the identifier is the hex-encoded ASCII-string ``TALER`` (with one 
0-byte left padding).
 
-During the time that wallet is paired with a reader, the communication channel 
is stateful.
+During the time that the wallet is paired with a reader, there is state 
associated with the communication channel.
 Most importantly, the first message sent by the reader to the wallet must be a 
``SELECT FILE (=0xA4)`` that selects
-the GNU Taler AID.
+the GNU Taler AID.  Messages that are sent before the correct ``SELECT FILE`` 
message result in undefined behavior.
 
 The reader sends commands to the wallet with the ``PUT DATA (=0xDA)`` 
instruction, using the instruction parameters ``0x0100``,
 denoting a proprietary instruction.

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